
The AirTAC Airtac MDJ Adjustable Cylinder MDJ20X20-10S is a genuine MD multi-mount cylinder (adjustable stroke), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact.
The AirTAC MDJ20X20-10S is an adjustable-stroke multi-mount cylinder whose compact square body fixes from 6 directions - front, back, left, right, top and bottom - and mounts side by side with other cylinders to save space. The 20 mm bore with a 20 mm stroke plus a 10 mm adjustable range gives double-acting push force of about 157.1 N at 0.5 MPa, and the cushion is a bumper.
This is a genuine AirTAC part in the MD family, the standard multi-mount series where the rod is free to rotate; the MK family is the no-rotating alternative. As the SKU shows, this model is supplied with a magnet for position sensing. We can confirm dimensions and sizing details from the datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ20X20-10S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
Select the 20 mm bore when your application needs around 157.1 N of push force at 0.5 MPa, double acting. Stay with MD if rod rotation is acceptable, or move to MK where rotation must be prevented. The MDJ variant provides a 20 mm working stroke with a 10 mm adjustable range, within the bore 20 table that runs up to 60 mm standard stroke. The trailing S on this SKU means a magnet is fitted; the same model without S has none. Thread is PT on this SKU, with G offered as an option. Avoid stretching to an over-long stroke because of the short cover, and check side-load limits with us first.
Fixed through any of the 6 body faces, the cylinder clamps small parts, and the built-in magnet signals clamp completion back to the controller.
Mounted side by side on a machining or assembly jig, multiple cylinders set locating positions, with the adjustable range set to each stop point.
Under a conveyor, the cylinder extends a stopper or swings a gate, using the bumper cushion at stroke end and the magnet to confirm position.
The trailing S means this cylinder is supplied with a magnet, so magnetic switches can be sensed in the slots around the body. The same model without the S (MDJ20X20-10) has no magnet. The -10 itself is the 10 mm adjustable range added to the 20 mm working stroke.
This MDJ model has a 20 mm working stroke with a 10 mm adjustable range on top. Keep the overall stroke within the bore's table - bore 20 multi-mount cylinders run up to 60 mm standard stroke - since the short cover limits over-long strokes; ask us to confirm details from the datasheet.